"

波女超比赛直播-美女体育直播-体育下注平台【米fun直播】拥有全球最顶尖的原生APP,每天为您提供千场精彩体育赛事,波女超比赛直播-美女体育直播-体育下注平台【米fun直播】更有真人、彩票、电子老虎机、真人电子竞技游戏等多种娱乐方式选择,波女超比赛直播-美女体育直播-体育下注平台【米fun直播】让您尽享娱乐、赛事投注等,且无后顾之忧!

<menu id="eiksi"><tt id="eiksi"></tt></menu>
  • <menu id="eiksi"></menu>
  • <xmp id="eiksi"><menu id="eiksi"></menu>
    <xmp id="eiksi">
    "

    ղ    Ϊҳ
    Ʒ
    > IGBTɢ >

    IGBTIJŮֱ-Ůֱ-עƽ̨funֱ¶밲ȫ

    Դhttp://www.empowered-teacher.com/
    IGBT
    ģ
    IGBTIGBTֺFWDֹIGBTԴڲIGBTͷܣFWDоƬǸԷĵĺϼƼΪIGBT巢ⷢĿɷΪ̬ͽݽɱ²Ůֱ-Ůֱ-עƽ̨funֱ
    IGBTһ뿪Ҫڣ

    1IGBTڵͨʱб͵ѹ-Vcesat
    2IGBTڿʱпܺ-EonEoff

    IGBTĵĸԴŮֱ-Ůֱ-עƽ̨funֱVcesatɵͨŮֱ-Ůֱ-עƽ̨funֱEonEoffɿŮֱ-Ůֱ-עƽ̨funֱ
    ͨ + = IGBT

    FWDҲŮֱ-Ůֱ-עƽ̨funֱΪ

    1ͨʱͨѹVf
    2ڷָĹзָܺģErec

    VfɵͨIJŮֱ-Ůֱ-עƽ̨funֱErecɿŮֱ-Ůֱ-עƽ̨funֱ
    ͨ + = FWD
    VcesatEonEoffVfErecIGBT/FWDоƬļIGBT/FWDоƬͬŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱVcesatŮֱ-Ůֱ-עƽ̨funֱEonŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱEoffVfErecҲͬ
    IGBTĿɷΪ̬ĺͶ̬о̬İ̬ͨĺͶ̬IJŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱ̬ģģͨĺ͹ضڹضʱŮֱ-Ůֱ-עƽ̨funֱĵԼŮֱ-Ůֱ-עƽ̨funֱѹŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱ˻СԺԲ˼㾲̬ĵʱԲǶ̬ƽ˵ľ̬һָ̬ͨŮֱ-Ůֱ-עƽ̨funֱ

    IGBTŮֱ-Ůֱ-עƽ̨funֱ-IGBTͨģ
    IGBTͨڱ״̬Ůֱ-Ůֱ-עƽ̨funֱIGBT伫ѹԼڱ͵ѹVcesatŮֱ-Ůֱ-עƽ̨funֱ
    IGBTָ̬ͨIGBTͨڵͨѹVcesat
    VcesatIcĹϵͼĽԷʾ
    Vcesat = Vt0 + Rce * Ic
    IGBTĵͨģ
    Pcond = d * Vcesat * IcdΪIGBTĵͨռձ
    IGBT͵ѹĴСŮֱ-Ůֱ-עƽ̨funֱͨĵIcоƬĽTjżѹVgeй
    IJŮֱ-Ůֱ-עƽ̨funֱIGBT͵ѹֵVcesatŮֱ-Ůֱ-עƽ̨funֱ
    ӢIGBTµı͵ѹֵ
    1Tj=25ȲŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱ2Tj=125ΪIc,nom(ıƵ)VGE=+15VŮֱ-Ůֱ-עƽ̨funֱ
    IGBT-IGBTģ
    IGBT֮ԴڿܺŮֱ-Ůֱ-עƽ̨funֱΪڿͨ͹ضϵ˲Ůֱ-Ůֱ-עƽ̨funֱ͵ѹص
    ſƵʵеıҲñȽϴİͨĺ͹ضڸͨضʱģͨӵؽ͵ѹٶʱַõͬʱ迼ʵʵο֮IJ
    VceӽEonEoffɽƵؿIcVceȣ
    Eon = EON * IC/IC,NOM * Vce /
    Eoff = EOFF * IC/IC,NOM * Vce /
    IGBTĿģ
    PSW = Fsw * (Eon + Eoff)Ůֱ-Ůֱ-עƽ̨funֱfSWΪƵʲŮֱ-Ůֱ-עƽ̨funֱ
    IGBTܺĵĴС뿪ʱĵIcŮֱ-Ůֱ-עƽ̨funֱѹVceоƬĽ£Tjй
    IGBTܺĵֵEonŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱEoff
    ӢIGBTµĿֵܺ
    1Tj=252Tj=125ΪIC,NOM(ıƵ)Ůֱ-Ůֱ-עƽ̨funֱ
    IGBT-FWDģ
    ָFWDĹͨתΪϵ˲ΪͨٻָΪ״̬
    VrӽErecɽƵؿIfVrȣ
    Erec = EREC * If /IF,NOM * Vr/
    FWDĿģ
    Prec = fSW * ErecfSWΪƵ
    FWDָܺĵĴСͨʱĵIf仯dif/dtѹVrоƬĽ£Tjй
    IJŮֱ-Ůֱ-עƽ̨funֱIGBTָܺĵֵERECŮֱ-Ůֱ-עƽ̨funֱ
    ӢIGBTŮֱ-Ůֱ-עƽ̨funֱµķֵָܺ
    1Tj=252Tj=125ΪIF,NOMIJŮֱ-Ůֱ-עƽ̨funֱıƵŮֱ-Ůֱ-עƽ̨funֱ
    IGBT-С᣺
    IGBT:
    ͨģ

    1IGBTоƬй
    2йأIGBTռձȳTj߶
    3йأVgeӶС

    ģ

    1IGBTоƬй
    2빤йأ뿪ƵʲŮֱ-Ůֱ-עƽ̨funֱŮֱ-Ůֱ-עƽ̨funֱѹTj߶
    3йأRgŮֱ-Ůֱ-עƽ̨funֱżضϵѹӶС

    FWD:
    ͨģ

    1FWDоƬй
    2빤йأFWDռձȳŮֱ-Ůֱ-עƽ̨funֱ

    ģ

    1FWDоƬй
    2빤йأ뿪ƵѹTj߶

    ϵͳܵģ
    IGBTܵPTrΪ̬ͨ뿪֮ܵPDΪ̬ͨĺͿ֮Ůֱ-Ůֱ-עƽ̨funֱԱƵΪŮֱ-Ůֱ-עƽ̨funֱϵͳܵPtotΪ6IGBT6֮ͲŮֱ-Ůֱ-עƽ̨funֱ
    ֤: ҸͼƬ
       Ϻ˵ӿƼ޹˾
       ϵˣС
       ߣ021-58979561
       ҵѯqq447495955
       ҵѯqq1852433657
       ҵѯqq513845646
       ֧qq313548578
       Ⱥ376450741
       ҵѯ:  ҷϢ
       ҵѯ:  ҷϢ
       ҵѯ:  ҷϢ
       ֧:  ҷϢ
       ý:  ҷϢ

    Ůֱ-Ůֱ-עƽ̨funֱ
    <menu id="eiksi"><tt id="eiksi"></tt></menu>
  • <menu id="eiksi"></menu>
  • <xmp id="eiksi"><menu id="eiksi"></menu>
    <xmp id="eiksi">